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BMW 335: A Comprehensive Buyer's Guide

The BMW 335 is a high-performance variant of the iconic BMW 3 Series, renowned for its blend of luxury, sporty handling, and powerful engines. Introduced as a successor to the naturally aspirated inline-six engines that defined the 3 Series for decades, the 335 brought turbocharging to the forefront, offering a significant boost in power and torque. This guide provides a detailed overview of the BMW 335, covering its history, generations, common issues, driving experience, and crucial buying advice.

Generations

  • E90/E91/E92/E93 (2006-2013)
    • E90: Sedan
    • E91: Touring (Wagon)
    • E92: Coupe
    • E93: Convertible
    • Engine (2007-2010): N54 3.0L Twin-Turbo Inline-Six (300 hp, 300 lb-ft) - Known for its tunability but also potential reliability issues.
    • Engine (2011-2013): N55 3.0L Single Turbo Inline-Six (300 hp, 300 lb-ft) - A more reliable engine option with slightly less tuning potential compared to the N54. Features Valvetronic and direct injection.
    • Transmissions: 6-speed manual, 6-speed automatic (N54), 8-speed automatic (N55 from 2011 onwards).
    • Key Changes: Introduction of iDrive infotainment system, improved interior materials compared to previous generations. LCI (Life Cycle Impulse) updates brought minor styling changes and technological improvements.
  • F30/F31/F34 (2012-2019)
    • F30: Sedan
    • F31: Touring (Wagon)
    • F34: Gran Turismo (Hatchback)
    • Engine (2012-2015): N55 3.0L Single Turbo Inline-Six (300 hp, 300 lb-ft). Carried over from the later E90 series.
    • Engine (2016): Introduction of the 340i with the B58 engine (320 hp, 330 lb-ft), marking the end of the "335" designation. The B58 is generally considered very reliable and offers even more tuning potential.
    • Transmissions: 6-speed manual, 8-speed automatic.
    • Key Changes: Shift to electric power steering, larger dimensions, more interior space, updated iDrive system. Offered with xDrive (all-wheel drive) on some models.

Reliability & Common Issues

N54 Engine (E90/E91/E92/E93 2007-2010)

The N54 engine, while potent, is known for several potential issues:

  • High-Pressure Fuel Pump (HPFP): Prone to failure, leading to extended cranking or engine stalling. BMW issued several recalls to address this issue.
  • Injectors: Direct injectors can fail, causing misfires and rough running. Index 12 injectors are the updated version and are less prone to failure.
  • Turbochargers: Wastegate rattle is a common issue, especially in earlier models. This doesn't always affect performance but can be noisy. Turbo failures can also occur, although less frequently than HPFP or injector problems.
  • Oil Leaks: Valve cover gasket, oil filter housing gasket, and oil pan gasket are common sources of leaks.
  • Water Pump & Thermostat: Electric water pump failures are frequent, leading to overheating.
  • Carbon Buildup: Direct injection engines are susceptible to carbon buildup on the intake valves, reducing performance. Walnut blasting is a common solution.

N55 Engine (E90/E91/E92/E93 2011-2013, F30/F31/F34 2012-2015)

The N55 engine is generally more reliable than the N54, but still has some potential issues:

  • Oil Leaks: Similar to the N54, valve cover gasket and oil filter housing gasket leaks are common.
  • Water Pump & Thermostat: Electric water pump failures remain a concern.
  • VANOS Solenoids: Can fail, leading to rough running and reduced performance.
  • Carbon Buildup: Still present, although perhaps slightly less pronounced than on the N54.

General Issues (All Models)

  • Electrical Problems: BMWs can be prone to various electrical gremlins.
  • Suspension Components: Bushings, control arms, and shocks may need replacement, especially on higher mileage vehicles.
  • Cooling System: Check for leaks and ensure proper operation of the cooling fan.
  • Automatic Transmission: While generally reliable, regular fluid changes are recommended to prolong its lifespan.

Driving Experience

The BMW 335 is known for its engaging driving experience. The turbocharged inline-six engines provide strong and responsive power delivery. The steering is precise and communicative, and the suspension offers a good balance between comfort and handling. The car feels planted and confident in corners. However, some complain about the electric power steering introduced in the F30 generation lacking the feedback of the older hydraulic systems.

Pros:

  • Powerful and responsive engine
  • Excellent handling and driving dynamics
  • Luxurious interior (especially with options)
  • Available in a variety of body styles
  • Strong aftermarket support for tuning and modifications

Cons:

  • Potential reliability issues, especially with the N54 engine
  • Can be expensive to maintain
  • Electric power steering (F30) lacks some feedback

Buying Advice

What Years to Look For:

  • 2011-2013 E90/E91/E92/E93 (N55): Offers the updated N55 engine with improved reliability over the N54.
  • 2014-2015 F30/F31/F34 (N55): A good balance of performance and reliability, with modern features.
  • 2016 F30 (340i - B58): The ultimate choice for reliability and performance. The B58 engine is significantly more robust and offers great tuning potential. Although it's branded the 340i, it effectively replaces the 335i.

What to Avoid:

  • Early N54 models (2007-2008): Prone to HPFP and injector issues. If considering an N54, look for one with documented replacements of these parts.
  • Cars with neglected maintenance: A poorly maintained BMW can be a money pit. Always get a pre-purchase inspection (PPI) from a qualified BMW mechanic.
  • Heavily modified cars: Unless you know the quality of the modifications and the competence of the installer, it's best to avoid heavily modified cars.

Key Considerations:

  • Pre-Purchase Inspection (PPI): Absolutely essential to identify potential issues before you buy.
  • Maintenance History: Look for a car with a complete and detailed maintenance history.
  • Test Drive: Pay attention to engine performance, transmission smoothness, suspension noises, and overall handling.
  • VIN Decoder: Use a VIN decoder to verify the car's options and history.
  • Budget: Factor in the cost of potential repairs and maintenance when setting your budget.

By carefully researching and inspecting potential candidates, you can find a BMW 335 that provides an enjoyable and rewarding driving experience for years to come.

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